curl --request POST \
  --url https://app.gtm-api.com/linkedin/v4/api/linkedin-messages/search \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'Team-SID: <api-key>' \
  --data '
{
  "filter": {
    "sid": {
      "eq": "<string>",
      "in": [
        "<string>"
      ]
    },
    "linkedin_account_sid": {
      "eq": "<string>",
      "in": [
        "<string>"
      ]
    },
    "linkedin_conversation_sid": {
      "eq": "<string>",
      "in": [
        "<string>"
      ]
    },
    "messenger_type": {
      "in": []
    },
    "linkedin_type": {
      "in": [],
      "nin": []
    },
    "type": {
      "in": []
    },
    "automation": {
      "in": [],
      "nin": []
    },
    "ln_id": {
      "eq": "<string>",
      "ne": "<string>",
      "in": [
        "<string>"
      ],
      "nin": [
        "<string>"
      ],
      "is_null": true
    },
    "ln_member_id": {
      "eq": "<string>",
      "ne": "<string>",
      "in": [
        "<string>"
      ],
      "nin": [
        "<string>"
      ]
    },
    "sn_id": {
      "eq": "<string>",
      "ne": "<string>",
      "in": [
        "<string>"
      ],
      "nin": [
        "<string>"
      ],
      "is_null": true
    },
    "nickname": {
      "eq": "<string>",
      "in": [
        "<string>"
      ],
      "is_null": true
    },
    "message_hash": {
      "eq": "<string>",
      "in": [
        "<string>"
      ]
    },
    "q": "<string>",
    "sent_at": {
      "gte": "<string>",
      "lte": "<string>",
      "gt": "<string>",
      "lt": "<string>"
    },
    "created_at": {
      "gte": "<string>",
      "lte": "<string>",
      "gt": "<string>",
      "lt": "<string>"
    },
    "updated_at": {
      "gte": "<string>",
      "lte": "<string>",
      "gt": "<string>",
      "lt": "<string>"
    },
    "deleted_at": {
      "gte": "<string>",
      "lte": "<string>",
      "is_null": true
    }
  },
  "include": [],
  "page_size": 100,
  "cursor": "<string>"
}
'

import requests

url = "https://app.gtm-api.com/linkedin/v4/api/linkedin-messages/search"

payload = {
    "filter": {
        "sid": {
            "eq": "<string>",
            "in": ["<string>"]
        },
        "linkedin_account_sid": {
            "eq": "<string>",
            "in": ["<string>"]
        },
        "linkedin_conversation_sid": {
            "eq": "<string>",
            "in": ["<string>"]
        },
        "messenger_type": { "in": [] },
        "linkedin_type": {
            "in": [],
            "nin": []
        },
        "type": { "in": [] },
        "automation": {
            "in": [],
            "nin": []
        },
        "ln_id": {
            "eq": "<string>",
            "ne": "<string>",
            "in": ["<string>"],
            "nin": ["<string>"],
            "is_null": True
        },
        "ln_member_id": {
            "eq": "<string>",
            "ne": "<string>",
            "in": ["<string>"],
            "nin": ["<string>"]
        },
        "sn_id": {
            "eq": "<string>",
            "ne": "<string>",
            "in": ["<string>"],
            "nin": ["<string>"],
            "is_null": True
        },
        "nickname": {
            "eq": "<string>",
            "in": ["<string>"],
            "is_null": True
        },
        "message_hash": {
            "eq": "<string>",
            "in": ["<string>"]
        },
        "q": "<string>",
        "sent_at": {
            "gte": "<string>",
            "lte": "<string>",
            "gt": "<string>",
            "lt": "<string>"
        },
        "created_at": {
            "gte": "<string>",
            "lte": "<string>",
            "gt": "<string>",
            "lt": "<string>"
        },
        "updated_at": {
            "gte": "<string>",
            "lte": "<string>",
            "gt": "<string>",
            "lt": "<string>"
        },
        "deleted_at": {
            "gte": "<string>",
            "lte": "<string>",
            "is_null": True
        }
    },
    "include": [],
    "page_size": 100,
    "cursor": "<string>"
}
headers = {
    "Authorization": "Bearer <token>",
    "Team-SID": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {
    Authorization: 'Bearer <token>',
    'Team-SID': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    filter: {
      sid: {eq: '<string>', in: ['<string>']},
      linkedin_account_sid: {eq: '<string>', in: ['<string>']},
      linkedin_conversation_sid: {eq: '<string>', in: ['<string>']},
      messenger_type: {in: []},
      linkedin_type: {in: [], nin: []},
      type: {in: []},
      automation: {in: [], nin: []},
      ln_id: {
        eq: '<string>',
        ne: '<string>',
        in: ['<string>'],
        nin: ['<string>'],
        is_null: true
      },
      ln_member_id: {eq: '<string>', ne: '<string>', in: ['<string>'], nin: ['<string>']},
      sn_id: {
        eq: '<string>',
        ne: '<string>',
        in: ['<string>'],
        nin: ['<string>'],
        is_null: true
      },
      nickname: {eq: '<string>', in: ['<string>'], is_null: true},
      message_hash: {eq: '<string>', in: ['<string>']},
      q: '<string>',
      sent_at: {gte: '<string>', lte: '<string>', gt: '<string>', lt: '<string>'},
      created_at: {gte: '<string>', lte: '<string>', gt: '<string>', lt: '<string>'},
      updated_at: {gte: '<string>', lte: '<string>', gt: '<string>', lt: '<string>'},
      deleted_at: {gte: '<string>', lte: '<string>', is_null: true}
    },
    include: [],
    page_size: 100,
    cursor: '<string>'
  })
};

fetch('https://app.gtm-api.com/linkedin/v4/api/linkedin-messages/search', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://app.gtm-api.com/linkedin/v4/api/linkedin-messages/search",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'filter' => [
        'sid' => [
                'eq' => '<string>',
                'in' => [
                                '<string>'
                ]
        ],
        'linkedin_account_sid' => [
                'eq' => '<string>',
                'in' => [
                                '<string>'
                ]
        ],
        'linkedin_conversation_sid' => [
                'eq' => '<string>',
                'in' => [
                                '<string>'
                ]
        ],
        'messenger_type' => [
                'in' => [
                                
                ]
        ],
        'linkedin_type' => [
                'in' => [
                                
                ],
                'nin' => [
                                
                ]
        ],
        'type' => [
                'in' => [
                                
                ]
        ],
        'automation' => [
                'in' => [
                                
                ],
                'nin' => [
                                
                ]
        ],
        'ln_id' => [
                'eq' => '<string>',
                'ne' => '<string>',
                'in' => [
                                '<string>'
                ],
                'nin' => [
                                '<string>'
                ],
                'is_null' => true
        ],
        'ln_member_id' => [
                'eq' => '<string>',
                'ne' => '<string>',
                'in' => [
                                '<string>'
                ],
                'nin' => [
                                '<string>'
                ]
        ],
        'sn_id' => [
                'eq' => '<string>',
                'ne' => '<string>',
                'in' => [
                                '<string>'
                ],
                'nin' => [
                                '<string>'
                ],
                'is_null' => true
        ],
        'nickname' => [
                'eq' => '<string>',
                'in' => [
                                '<string>'
                ],
                'is_null' => true
        ],
        'message_hash' => [
                'eq' => '<string>',
                'in' => [
                                '<string>'
                ]
        ],
        'q' => '<string>',
        'sent_at' => [
                'gte' => '<string>',
                'lte' => '<string>',
                'gt' => '<string>',
                'lt' => '<string>'
        ],
        'created_at' => [
                'gte' => '<string>',
                'lte' => '<string>',
                'gt' => '<string>',
                'lt' => '<string>'
        ],
        'updated_at' => [
                'gte' => '<string>',
                'lte' => '<string>',
                'gt' => '<string>',
                'lt' => '<string>'
        ],
        'deleted_at' => [
                'gte' => '<string>',
                'lte' => '<string>',
                'is_null' => true
        ]
    ],
    'include' => [
        
    ],
    'page_size' => 100,
    'cursor' => '<string>'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json",
    "Team-SID: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://app.gtm-api.com/linkedin/v4/api/linkedin-messages/search"

	payload := strings.NewReader("{\n  \"filter\": {\n    \"sid\": {\n      \"eq\": \"<string>\",\n      \"in\": [\n        \"<string>\"\n      ]\n    },\n    \"linkedin_account_sid\": {\n      \"eq\": \"<string>\",\n      \"in\": [\n        \"<string>\"\n      ]\n    },\n    \"linkedin_conversation_sid\": {\n      \"eq\": \"<string>\",\n      \"in\": [\n        \"<string>\"\n      ]\n    },\n    \"messenger_type\": {\n      \"in\": []\n    },\n    \"linkedin_type\": {\n      \"in\": [],\n      \"nin\": []\n    },\n    \"type\": {\n      \"in\": []\n    },\n    \"automation\": {\n      \"in\": [],\n      \"nin\": []\n    },\n    \"ln_id\": {\n      \"eq\": \"<string>\",\n      \"ne\": \"<string>\",\n      \"in\": [\n        \"<string>\"\n      ],\n      \"nin\": [\n        \"<string>\"\n      ],\n      \"is_null\": true\n    },\n    \"ln_member_id\": {\n      \"eq\": \"<string>\",\n      \"ne\": \"<string>\",\n      \"in\": [\n        \"<string>\"\n      ],\n      \"nin\": [\n        \"<string>\"\n      ]\n    },\n    \"sn_id\": {\n      \"eq\": \"<string>\",\n      \"ne\": \"<string>\",\n      \"in\": [\n        \"<string>\"\n      ],\n      \"nin\": [\n        \"<string>\"\n      ],\n      \"is_null\": true\n    },\n    \"nickname\": {\n      \"eq\": \"<string>\",\n      \"in\": [\n        \"<string>\"\n      ],\n      \"is_null\": true\n    },\n    \"message_hash\": {\n      \"eq\": \"<string>\",\n      \"in\": [\n        \"<string>\"\n      ]\n    },\n    \"q\": \"<string>\",\n    \"sent_at\": {\n      \"gte\": \"<string>\",\n      \"lte\": \"<string>\",\n      \"gt\": \"<string>\",\n      \"lt\": \"<string>\"\n    },\n    \"created_at\": {\n      \"gte\": \"<string>\",\n      \"lte\": \"<string>\",\n      \"gt\": \"<string>\",\n      \"lt\": \"<string>\"\n    },\n    \"updated_at\": {\n      \"gte\": \"<string>\",\n      \"lte\": \"<string>\",\n      \"gt\": \"<string>\",\n      \"lt\": \"<string>\"\n    },\n    \"deleted_at\": {\n      \"gte\": \"<string>\",\n      \"lte\": \"<string>\",\n      \"is_null\": true\n    }\n  },\n  \"include\": [],\n  \"page_size\": 100,\n  \"cursor\": \"<string>\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Team-SID", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://app.gtm-api.com/linkedin/v4/api/linkedin-messages/search")
  .header("Authorization", "Bearer <token>")
  .header("Team-SID", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"filter\": {\n    \"sid\": {\n      \"eq\": \"<string>\",\n      \"in\": [\n        \"<string>\"\n      ]\n    },\n    \"linkedin_account_sid\": {\n      \"eq\": \"<string>\",\n      \"in\": [\n        \"<string>\"\n      ]\n    },\n    \"linkedin_conversation_sid\": {\n      \"eq\": \"<string>\",\n      \"in\": [\n        \"<string>\"\n      ]\n    },\n    \"messenger_type\": {\n      \"in\": []\n    },\n    \"linkedin_type\": {\n      \"in\": [],\n      \"nin\": []\n    },\n    \"type\": {\n      \"in\": []\n    },\n    \"automation\": {\n      \"in\": [],\n      \"nin\": []\n    },\n    \"ln_id\": {\n      \"eq\": \"<string>\",\n      \"ne\": \"<string>\",\n      \"in\": [\n        \"<string>\"\n      ],\n      \"nin\": [\n        \"<string>\"\n      ],\n      \"is_null\": true\n    },\n    \"ln_member_id\": {\n      \"eq\": \"<string>\",\n      \"ne\": \"<string>\",\n      \"in\": [\n        \"<string>\"\n      ],\n      \"nin\": [\n        \"<string>\"\n      ]\n    },\n    \"sn_id\": {\n      \"eq\": \"<string>\",\n      \"ne\": \"<string>\",\n      \"in\": [\n        \"<string>\"\n      ],\n      \"nin\": [\n        \"<string>\"\n      ],\n      \"is_null\": true\n    },\n    \"nickname\": {\n      \"eq\": \"<string>\",\n      \"in\": [\n        \"<string>\"\n      ],\n      \"is_null\": true\n    },\n    \"message_hash\": {\n      \"eq\": \"<string>\",\n      \"in\": [\n        \"<string>\"\n      ]\n    },\n    \"q\": \"<string>\",\n    \"sent_at\": {\n      \"gte\": \"<string>\",\n      \"lte\": \"<string>\",\n      \"gt\": \"<string>\",\n      \"lt\": \"<string>\"\n    },\n    \"created_at\": {\n      \"gte\": \"<string>\",\n      \"lte\": \"<string>\",\n      \"gt\": \"<string>\",\n      \"lt\": \"<string>\"\n    },\n    \"updated_at\": {\n      \"gte\": \"<string>\",\n      \"lte\": \"<string>\",\n      \"gt\": \"<string>\",\n      \"lt\": \"<string>\"\n    },\n    \"deleted_at\": {\n      \"gte\": \"<string>\",\n      \"lte\": \"<string>\",\n      \"is_null\": true\n    }\n  },\n  \"include\": [],\n  \"page_size\": 100,\n  \"cursor\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.gtm-api.com/linkedin/v4/api/linkedin-messages/search")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Team-SID"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"filter\": {\n    \"sid\": {\n      \"eq\": \"<string>\",\n      \"in\": [\n        \"<string>\"\n      ]\n    },\n    \"linkedin_account_sid\": {\n      \"eq\": \"<string>\",\n      \"in\": [\n        \"<string>\"\n      ]\n    },\n    \"linkedin_conversation_sid\": {\n      \"eq\": \"<string>\",\n      \"in\": [\n        \"<string>\"\n      ]\n    },\n    \"messenger_type\": {\n      \"in\": []\n    },\n    \"linkedin_type\": {\n      \"in\": [],\n      \"nin\": []\n    },\n    \"type\": {\n      \"in\": []\n    },\n    \"automation\": {\n      \"in\": [],\n      \"nin\": []\n    },\n    \"ln_id\": {\n      \"eq\": \"<string>\",\n      \"ne\": \"<string>\",\n      \"in\": [\n        \"<string>\"\n      ],\n      \"nin\": [\n        \"<string>\"\n      ],\n      \"is_null\": true\n    },\n    \"ln_member_id\": {\n      \"eq\": \"<string>\",\n      \"ne\": \"<string>\",\n      \"in\": [\n        \"<string>\"\n      ],\n      \"nin\": [\n        \"<string>\"\n      ]\n    },\n    \"sn_id\": {\n      \"eq\": \"<string>\",\n      \"ne\": \"<string>\",\n      \"in\": [\n        \"<string>\"\n      ],\n      \"nin\": [\n        \"<string>\"\n      ],\n      \"is_null\": true\n    },\n    \"nickname\": {\n      \"eq\": \"<string>\",\n      \"in\": [\n        \"<string>\"\n      ],\n      \"is_null\": true\n    },\n    \"message_hash\": {\n      \"eq\": \"<string>\",\n      \"in\": [\n        \"<string>\"\n      ]\n    },\n    \"q\": \"<string>\",\n    \"sent_at\": {\n      \"gte\": \"<string>\",\n      \"lte\": \"<string>\",\n      \"gt\": \"<string>\",\n      \"lt\": \"<string>\"\n    },\n    \"created_at\": {\n      \"gte\": \"<string>\",\n      \"lte\": \"<string>\",\n      \"gt\": \"<string>\",\n      \"lt\": \"<string>\"\n    },\n    \"updated_at\": {\n      \"gte\": \"<string>\",\n      \"lte\": \"<string>\",\n      \"gt\": \"<string>\",\n      \"lt\": \"<string>\"\n    },\n    \"deleted_at\": {\n      \"gte\": \"<string>\",\n      \"lte\": \"<string>\",\n      \"is_null\": true\n    }\n  },\n  \"include\": [],\n  \"page_size\": 100,\n  \"cursor\": \"<string>\"\n}"

response = http.request(request)
puts response.read_body

{
  "success": true,
  "operation": "search",
  "items": [
    {
      "item": {
        "sid": "<string>",
        "team_sid": "<string>",
        "linkedin_account_sid": "<string>",
        "linkedin_conversation_sid": "<string>",
        "ln_member_id": "<string>",
        "ln_id": "<string>",
        "sn_id": "<string>",
        "nickname": "<string>",
        "subject": "<string>",
        "text": "<string>",
        "attachments": [
          {
            "id": "<string>",
            "urn": "<string>",
            "name": "<string>",
            "content_type": "<string>",
            "content_url": "<string>",
            "file_byte_size": 123,
            "path": "<string>",
            "size": 123
          }
        ],
        "reactions": [
          {
            "emoji": "<string>",
            "count": 123,
            "is_viewer_reacted": true,
            "first_reacted_at": "<string>"
          }
        ],
        "message_hash": "<string>",
        "sent_at": "<string>",
        "custom_content": {},
        "created_at": "<string>",
        "updated_at": "<string>",
        "deleted_at": "<string>"
      },
      "included": {}
    }
  ],
  "pagination": {
    "next_cursor": "<string>",
    "has_more": true,
    "total_count": 123
  },
  "applied_filters": {},
  "includes": [
    "<string>"
  ],
  "meta": {
    "trace_id": "<string>",
    "span_id": "<string>",
    "timestamp": "<string>",
    "duration_ms": 1,
    "debug_url": "<string>"
  },
  "counts": {}
}

{
  "success": false,
  "error": {
    "message": "<string>",
    "recoverable": true,
    "suggestion": "<string>",
    "field_errors": {},
    "blockers": [
      {
        "type": "<string>",
        "description": "<string>",
        "entity_sid": "<string>",
        "resolution": "<string>",
        "resolution_hint": "<string>",
        "count": 123
      }
    ],
    "context": {}
  },
  "meta": {
    "trace_id": "<string>",
    "span_id": "<string>",
    "timestamp": "<string>",
    "duration_ms": 1,
    "debug_url": "<string>"
  }
}

{
  "success": false,
  "error": {
    "message": "<string>",
    "recoverable": true,
    "suggestion": "<string>",
    "field_errors": {},
    "blockers": [
      {
        "type": "<string>",
        "description": "<string>",
        "entity_sid": "<string>",
        "resolution": "<string>",
        "resolution_hint": "<string>",
        "count": 123
      }
    ],
    "context": {}
  },
  "meta": {
    "trace_id": "<string>",
    "span_id": "<string>",
    "timestamp": "<string>",
    "duration_ms": 1,
    "debug_url": "<string>"
  }
}